Question

how can we seperate a mixture of iron fillings chalk powder and common salt

Answer 1

bro magnate se pawder ke uper gumade iron magnate me chipak jaye ga or salt alg ho jaye ga

Answer 2

First of all use magnetic separation method to remove iron fillings from the mixture..Then the mixture of chalk powder(Calcium carbonate)
and water can be separated by method of distillation...During distillation chalk powder is left behind and pure form of water is obtained..